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We analyzed a small corpus of posts from the Languages section of Yahoo!
Their learning potential, however, cannot be taken for granted just because learning has long been recognized as social in nature.
Their findings highlight the importance of understanding the interrelationship among these aspects.
Sentiment analysis in questions and answers is carried out by Kucuktunc, Cambazoglu, Weber and Ferhatosmanoglu , who found that best answers differ from other answers, as concerns the sentiment they express, and predict the attitude that a question will provoke in answerers.
In this paper, we take into consideration a kind of social space that has so far been scarcely considered in the educational field, that is, question answering (QA), with the aim to understand if informal learning opportunities are actually provided by such online environments.
Social QA services have been widely developing in the past decade, with the mission to be places where everybody can contribute what they know, because everybody, not only teachers and experts, has some knowledge to share .